We tell you the cheap answer first
If downspout extensions and regrading would fix it, you hear that before anybody quotes you a drainage system.
A large share of wet basements in this area are surface water that was never supposed to reach the wall: a downspout discharging at the foundation, or ground that slopes back toward the house. That fix is a few hundred dollars of eavestrough and soil, and it is the answer a waterproofing company least wants to give. You get it given.